الفهرس 
acknowledgmentOnly 14 pages are availabe for public view
 |  | from | 264 |  |  |
| | | from | 264 | | |
Abstract
No more important single problem faces developing countries today than the problem of good water.the issue of pure water must be settled now for the benefit not only of this generation but for untold generations to come.water quality can have a great influence on the ability of aquatic plants and animals to exist and qrow which in turn can affect our health since,it can carry disease agents and toxic chemicals and it may have an an unplatable taste or a disagreeable oder (palmer,1980).